High severity7.0NVD Advisory· Published Nov 9, 2026
CVE-2026-125227
CVE-2026-125227
Description
FFmpeg through 9.0.2 contains an integer overflow in cbs_jpeg_write_scan() in libavcodec/cbs_jpeg.c that causes a heap buffer overflow on 32-bit builds. Attackers can supply a crafted MJPEG/JPEG stream with a scan of 512 MiB or more, processed by CBS bitstream filters like filter_units, to corrupt the heap or crash the application.
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Affected products
1Patches
Vulnerability mechanics
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